JPH0663126A - Failure detection system of blood dialyzer - Google Patents
Failure detection system of blood dialyzerInfo
- Publication number
- JPH0663126A JPH0663126A JP4221200A JP22120092A JPH0663126A JP H0663126 A JPH0663126 A JP H0663126A JP 4221200 A JP4221200 A JP 4221200A JP 22120092 A JP22120092 A JP 22120092A JP H0663126 A JPH0663126 A JP H0663126A
- Authority
- JP
- Japan
- Prior art keywords
- blood
- pressure
- detection system
- failure detection
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000008280 blood Substances 0.000 title claims abstract description 84
- 210000004369 blood Anatomy 0.000 title claims abstract description 84
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000001631 haemodialysis Methods 0.000 claims abstract description 19
- 230000000322 hemodialysis Effects 0.000 claims abstract description 19
- 238000012806 monitoring device Methods 0.000 claims abstract description 18
- 230000017531 blood circulation Effects 0.000 claims description 19
- 230000004872 arterial blood pressure Effects 0.000 claims description 12
- 206010053567 Coagulopathies Diseases 0.000 claims description 9
- 230000035602 clotting Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 230000036772 blood pressure Effects 0.000 description 6
- 230000002950 deficient Effects 0.000 description 5
- 210000003462 vein Anatomy 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007485 conventional hemodialysis Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
Abstract
(57)【要約】
【目的】 構成を簡単にすると共に、調整を不要にして
信頼性を向上することができる血液透析装置の脱血不良
検出システムを得る。
【構成】 監視装置４０を、従来の装置における圧力検
出手段（血液チャンバ２４，２６、トランスジューサ２
８，３０）を利用して構成する。すなわち、トランスジ
ューサによつて検知された動脈側および静脈側の圧力Ａ
ｐ，Ｖｐを、それぞれ増幅回路４２，４４を介してアナ
ログスイッチ４６に入力し、次いでその出力をＡ／Ｄ変
換器４８およびマイコン５０を介して監視表示部５２に
入力すると共に、さらにマイコンには血液ポンプ１６の
回転数Ｒをカウンタ５４を介して入力するよう構成す
る。そして、マイコンにより所定り演算を行うことによ
り、警報信号等を監視表示部に表示する。
(57) [Abstract] [Purpose] To obtain a blood removal failure detection system for a hemodialysis device, which has a simple structure and can be adjusted without adjustment. [Constitution] The monitoring device 40 is composed of a pressure detecting means (blood chambers 24 and 26, a transducer 2) in a conventional device.
8, 30). That is, the arterial and venous pressure A detected by the transducer
p and Vp are input to the analog switch 46 via the amplifier circuits 42 and 44, respectively, and then the output thereof is input to the monitor display section 52 via the A / D converter 48 and the microcomputer 50, and further to the microcomputer. The rotational speed R of the blood pump 16 is configured to be input via the counter 54. Then, by performing a predetermined calculation by the microcomputer, an alarm signal or the like is displayed on the monitor display unit.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、血液浄化器に流入側動
脈圧および流出側静脈圧を検出する圧力検出手段を備え
た血液透析装置に係り、殊にこの血液透析装置におい
て、前記血液浄化器を循環する血液流量の低下（脱血不
良）および血液流路の閉塞（クロッティング）を検出で
きるよう構成した検出システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hemodialyzer having a blood purifier equipped with a pressure detecting means for detecting an inflow side arterial pressure and an outflow side venous pressure. The present invention relates to a detection system configured to detect a decrease in blood flow rate (defective blood removal) and blockage of a blood flow path (clotting).
【０００２】[0002]
【従来の技術】一般に、血液透析装置は、図３に示すよ
うに、患者体内の動脈および静脈内に刺込んだ採血側針
１０と返血側針１２との間に、血液チューブを使用して
体外血液循環回路１４を形成し、この回路１４内におい
て血液ポンプ１６を介して採血される血液を血液浄化器
１８内に流通、循環することにより、血液を浄化するよ
う構成されている。そして、前記回路１４内には、血液
の浄化効率の低下を防止するために、通常、血液循環不
全または採血側針１０の異常などから発生する前記脱血
不良を検出する脱血圧検出手段２０と、血液浄化器１８
の流入側動脈圧および流出側静脈圧を検出する圧力検出
手段２２とが設けられている。なお、圧力検出手段２２
は、動脈側および静脈側にそれぞれ設けられる血液チャ
ンバ２４，２６と、トランスジューサ２８，３０および
前記トランスジューサに接続される圧力表示部３２とか
ら構成されている。2. Description of the Related Art Generally, as shown in FIG. 3, a hemodialysis apparatus uses a blood tube between a blood collection side needle 10 and a blood return side needle 12 inserted into an artery and a vein in a patient. An extracorporeal blood circulation circuit 14 is formed, and blood collected through the blood pump 16 in the circuit 14 is circulated and circulated in the blood purifier 18 to purify the blood. Further, in the circuit 14, there is provided a blood removal detecting means 20 for detecting the poor blood removal which normally occurs due to blood circulation failure or abnormality of the blood collection side needle 10 in order to prevent a decrease in blood purification efficiency. , Blood purifier 18
And a pressure detecting means 22 for detecting the inflow side arterial pressure and the outflow side venous pressure. The pressure detecting means 22
Is composed of blood chambers 24 and 26 respectively provided on the arterial side and the venous side, transducers 28 and 30, and a pressure display section 32 connected to the transducers.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述し
た血液透析装置の脱血圧検出手段は、以下に述べるよう
な難点を有していた。However, the above-mentioned means for detecting blood pressure in the hemodialysis machine has the following drawbacks.
【０００４】すなわち、脱血圧検出手段２０は、通常、
図３に示めされているように、中央部に検出部を有する
ピロ２０ａと、前記検出部の膨らみ度を検出する検出器
２０ｂとから構成されているが、その構造は比較的大形
かつ複雑であり、しかも後者の検出器は調整を必要とす
るものであった。このため、装置全体が大形化かつ複雑
化すると同時に、ややもすると信頼性に劣る難点を有し
ていた。さらに、前記脱血圧検出手段２０は、血液流路
のクロッティングを検出することは不可能であり、この
ため血液浄化機能の事故的な停止が誘発される大きな欠
点を有していた。That is, the blood pressure removal detecting means 20 is usually
As shown in FIG. 3, it is composed of a pillow 20a having a detection part in the central part and a detector 20b for detecting the degree of swelling of the detection part, but its structure is relatively large and It was complicated, and the latter detector required adjustment. Therefore, the size and complexity of the entire apparatus are increased, and at the same time, there is a problem in that the reliability is inferior. Further, the blood pressure removal detecting means 20 cannot detect the clotting of the blood flow path, which has a great drawback that the accidental stop of the blood purification function is induced.
【０００５】そこで、本発明の目的は、簡単な構成から
なり、しかも調整が不要で信頼性に優れ、さらに脱血不
良並びにクロッティングを検出することができる、血液
透析装置の脱血不良検出システムを提供することにあ
る。Therefore, an object of the present invention is to provide a blood removal failure detection system for a hemodialysis apparatus which has a simple structure, requires no adjustment, is highly reliable, and can detect failure of blood removal and clotting. To provide.
【０００６】[0006]
【課題を解決するための手段】先の目的を達成するため
に、本発明に係る血液透析装置の脱血不良検出システム
は、血液ポンプを介して血液を循環させる血液浄化器
に、その流入側動脈圧および流出側静脈圧を検出する圧
力検出手段を備えた血液透析装置において、前記圧力検
出手段に、前記流入側動脈圧および流出側静脈圧を比較
演算することにより前記血液浄化器内の血液流量を計測
監視する監視装置を設けることを特徴とする。In order to achieve the above-mentioned object, a system for detecting defective blood removal of a hemodialysis apparatus according to the present invention comprises a blood purifier that circulates blood through a blood pump and its inflow side. In a hemodialysis device equipped with pressure detection means for detecting arterial pressure and venous pressure on the outflow side, blood in the blood purifier is obtained by comparing and calculating the arterial pressure on the inflow side and venous pressure on the outflow side with the pressure detection means. It is characterized in that a monitoring device for measuring and monitoring the flow rate is provided.
【０００７】この場合、監視装置には、流入側動脈圧お
よび流出側静脈圧の比較演算値に関する低圧および高圧
の両基準値を備え、比較演算値が低圧基準値に達すると
脱血不良信号を発生すると共に高圧基準値に達すると血
液流路クロッティング信号を発生するよう構成すること
ができる。In this case, the monitoring device is provided with both low pressure and high pressure reference values relating to the comparison calculation value of the inflow side arterial pressure and the outflow side venous pressure, and when the comparison calculation value reaches the low pressure reference value, a blood removal failure signal is given. It can be configured to generate a blood channel clotting signal when generated and when the high pressure reference value is reached.
【０００８】また、監視装置は、さらに血液ポンプの回
転数をフィードバックする回路を含むことができる。The monitoring device may further include a circuit for feeding back the rotation speed of the blood pump.
【０００９】[0009]
【作用】本発明によれば、血液浄化器内の血液流量を検
出する監視装置は、前記血液浄化器に設けられている流
入側動脈圧および流出側静脈圧を検出する既存の圧力検
出手段を利用し、これに前記両圧力を比較演算する電子
回路を組込むことにより達成される。したがって、従来
必要とされた脱血圧検出手段（ピロ）が不要となり、血
液透析装置全体の構成が簡単となると同時に、調整が不
要となり信頼性を向上することができる。According to the present invention, the monitoring device for detecting the blood flow rate in the blood purifier has the existing pressure detecting means for detecting the inflow side arterial pressure and the outflow side venous pressure provided in the blood purifier. This is achieved by incorporating an electronic circuit for utilizing and comparing the two pressures. Therefore, the conventionally required detensioning detecting means (pillo) is not required, the configuration of the entire hemodialysis apparatus is simplified, and at the same time, adjustment is not required and reliability can be improved.
【００１０】さらに、前記監視装置に脱血不良を検出す
る低圧基準値とは別に、高圧基準値を設定しておけば、
血液浄化器内のクロッティングを容易に検出することが
でき、また血液ポンプの回転数をフィードバックする回
路を付設しておけば意識的な血液流量低下を脱血不良か
ら容易に判別することができる利点が得られる。Further, if a high pressure reference value is set in the monitoring device in addition to the low pressure reference value for detecting defective blood removal,
Clotting in the blood purifier can be easily detected, and if a circuit for feeding back the rotation speed of the blood pump is attached, a conscious decrease in blood flow rate can be easily discriminated from poor blood removal. Benefits are obtained.
【００１１】[0011]
【実施例】次に、本発明に係る血液透析装置の脱血不良
検出システムの実施例につき、添付図面を参照しながら
以下詳細に説明する。なお、説明の便宜上、図３に示す
従来の構造と同一の構成部分には同一の参照符号を付
し、詳細な説明は省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a blood removal failure detection system for a hemodialysis apparatus according to the present invention will be described in detail below with reference to the accompanying drawings. For convenience of explanation, the same components as those of the conventional structure shown in FIG. 3 are designated by the same reference numerals, and detailed description thereof will be omitted.
【００１２】図１において、先ず、本発明の脱血不良検
出システムは、基本的には、図３に示す従来の血液透析
装置において、その圧力検出手段を利用して監視装置を
構成するものであり、従来の血圧検出手段を省略したも
のである。すなわち、血液透析装置全体の基本的構成
は、前記従来のそれと同様に、採血側針１０と返血側針
１２との間に、体外血液循環回路１４を形成し、この回
路１４内において血液ポンプ１６を介して採血される血
液を、血液浄化器１８内に流通、循環することにより血
液を浄化するよう構成されている。In FIG. 1, first, the blood removal defect detection system of the present invention basically constitutes a monitoring device using the pressure detecting means in the conventional hemodialysis device shown in FIG. The conventional blood pressure detecting means is omitted. That is, the basic configuration of the entire hemodialysis apparatus is similar to that of the conventional one, in which an extracorporeal blood circulation circuit 14 is formed between the blood collection side needle 10 and the blood return side needle 12, and the blood pump is provided in this circuit 14. Blood collected through 16 is circulated and circulated in the blood purifier 18 to purify the blood.
【００１３】しかるに、本発明においては、前記従来の
装置における圧力検出手段２２（図３参照）〔血液チャ
ンバ２４，２６、トランスジューサ２８，３０および圧
力表示部３２〕を利用して、監視装置４０を構成する。
すなわち、監視装置４０は、図２にも示すように、前記
トランスジューサ２８，３０によつて検知された動脈側
および静脈側の圧力Ａｐ，Ｖｐを、それぞれ増幅回路４
２，４４を介してアナログスイッチ４６に入力し、次い
でその出力をＡ／Ｄ変換器４８およびマイコン５０を介
して監視表示部５２に入力すると共に、さらに前記マイ
コン５０には血液ポンプ１６の回転数Ｒをカウンタ５４
を介して入力するよう構成されている。However, in the present invention, the monitoring device 40 is utilized by utilizing the pressure detecting means 22 (see FIG. 3) [blood chambers 24, 26, transducers 28, 30 and pressure display portion 32] in the conventional device. Constitute.
That is, as shown also in FIG. 2, the monitoring device 40 detects the pressures Ap and Vp on the arterial side and the vein side detected by the transducers 28 and 30, respectively.
2, 44 to the analog switch 46, and then to the monitor / display section 52 via the A / D converter 48 and the microcomputer 50, and the microcomputer 50 further includes the number of revolutions of the blood pump 16. R counter 54
Is configured for input via.
【００１４】そして、前記監視装置４０は、下記式 ΔＰ＝Ａｐ−Ｖｐ … （１） ΔＰ＜ΔＰmin … （２） ΔＰ＞ΔＰmax … （３） Ｒ＜Ｒmin … （４） ここで、ΔＰ：血液浄化器内の血液流路の圧力損失 ΔＰmin ：圧力損失の低圧基準値 ΔＰmax ：圧力損失の高圧基準値 Ｒmin ：血液ポンプの低速回転基準値 を、それぞれ比較演算するよう構成されている。The monitoring device 40 uses the following formula ΔP = Ap-Vp (1) ΔP <ΔPmin (2) ΔP> ΔPmax (3) R <Rmin (4) where ΔP: blood purification The pressure loss ΔPmin of the blood flow path in the device is a low pressure reference value of the pressure loss ΔPmax: the high pressure reference value of the pressure loss Rmin: a low speed rotation reference value of the blood pump.
【００１５】したがって、本発明によれば、血液浄化器
１８内の血液流量は、前記式（１）によつて計測される
ことは明らかであるので、式（２）が成立することによ
り脱血不良が確実に検出され、その信号（警報）を監視
表示部５２に表示することができる。なお、この時、操
作者が意識的に血液流量を減少した場合、すなわち血液
ポンプ１６の回転数を低下させた場合には、式（４）が
成立することにより、前記血液流量の減少を事故的な脱
血不良から容易に判別することができる。また、式
（３）が成立することにより、すなわち異常な圧力上昇
は血液流路の閉塞を意味するものに他ならないので、ク
ロッティングが確実に検出され、その信号（警報）を監
視表示部５２に表示することができる。さらに、本発明
においては、前記各基準値ΔＰmin 、ΔＰmax 、Ｒmin
は適宜変更することができるので、血液透析装置を各種
の使用条件に対応して容易に設定できる大きな利点が発
揮される。Therefore, according to the present invention, it is clear that the blood flow rate in the blood purifier 18 is measured by the above equation (1). The defect can be reliably detected, and its signal (alarm) can be displayed on the monitor display unit 52. At this time, when the operator consciously reduces the blood flow rate, that is, when the rotation speed of the blood pump 16 is reduced, the equation (4) is satisfied, and thus the decrease in the blood flow rate is caused. It can be easily discriminated from the poor blood removal. Further, since the expression (3) is satisfied, that is, the abnormal pressure rise means nothing but the blockage of the blood flow path, the clotting is surely detected, and the signal (alarm) thereof is monitored and displayed by the monitor display unit 52. Can be displayed on. Further, in the present invention, each of the reference values ΔPmin, ΔPmax, Rmin.
Can be appropriately changed, so that a great advantage that the hemodialysis apparatus can be easily set according to various use conditions is exhibited.
【００１６】このように、本発明によれば、従来必要と
された脱血圧検出手段（ピロ）が不要となることによ
り、血液透析装置全体の構成が簡単となると同時に、調
整が不要となり信頼性が向上する。さらに、脱血不良と
同時にクロッティングを検出できると共に、血液透析装
置を各種の使用条件に対応して容易に設定できるという
大きな利点が発揮される。As described above, according to the present invention, since the blood pressure detecting means (pillo) which has been conventionally required is not required, the whole structure of the hemodialysis apparatus is simplified, and at the same time, the adjustment is not required and the reliability is improved. Is improved. Further, it is possible to detect the clotting at the same time as the poor blood removal, and it is possible to easily set the hemodialysis apparatus according to various use conditions, which is a great advantage.
【００１７】以上、本発明の好適な実施例について説明
したが、本発明は前記実施例に限定されることなく、そ
の精神を逸脱しない範囲内において多くの設計変更が可
能である。Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and many design changes can be made without departing from the spirit thereof.
【００１８】[0018]
【発明の効果】以上説明したように、本発明に係る血液
透析装置の脱血不良検出システムは、血液ポンプを介し
て血液を循環させる血液浄化器に、その流入側動脈圧お
よび流出側静脈圧を検出する圧力検出手段を備えた血液
透析装置において、前記圧力検出手段に、前記流入側動
脈圧および流出側静脈圧を比較演算することにより前記
血液浄化器内の血液流量を計測監視する監視装置を形成
するよう構成したことにより、すなわち、血液浄化器内
の血液流量を検出する監視装置を、血液浄化器に設けら
れている流入側動脈圧および流出側静脈圧を検出する既
存の圧力検出手段を利用し、これに前記両圧力を比較演
算する電子回路を組込むことにより達成するよう構成し
て、従来必要とされた脱血圧検出手段（ピロ）を不要と
し、この結果、血液透析装置全体の構成を簡単にできる
と同時に調整が不要となり、信頼性を向上させることが
できる。As described above, the system for detecting defective blood removal of a hemodialysis apparatus according to the present invention has a blood purifier that circulates blood via a blood pump, and has an inflow side arterial pressure and an outflow side venous pressure. In a hemodialysis apparatus equipped with a pressure detecting means for detecting the blood pressure, a monitoring device for measuring and monitoring the blood flow rate in the blood purifier by comparing and calculating the inflow side arterial pressure and the outflow side venous pressure with the pressure detecting means. In other words, the monitoring device for detecting the blood flow rate in the blood purifier is configured as the existing pressure detecting means for detecting the inflow side arterial pressure and the outflow side venous pressure provided in the blood purifier. It is configured so as to achieve this by incorporating an electronic circuit for comparing and calculating both the pressures, thereby eliminating the conventionally required detensioning detecting means (pillo), and as a result, When the structure of the whole dialysis apparatus can easily adjust is not necessary at the same time, it is possible to improve the reliability.
【００１９】さらに、前記監視装置に脱血不良を検出す
る低圧基準値とは別に、高圧基準値を設定しておけば、
血液浄化器内のクロッティングを容易に検出することが
でき、また血液ポンプの回転数をフィードバックする回
路を付設しておけば、意識的な血液流量低下を脱血不良
から容易に判別することができるという、大きな利点を
得ることができる。Further, if a high pressure reference value is set in the monitoring device in addition to the low pressure reference value for detecting defective blood removal,
Clotting in the blood purifier can be easily detected, and if a circuit that feeds back the rotation speed of the blood pump is attached, a conscious decrease in blood flow rate can be easily discriminated from poor blood removal. It is possible to obtain a great advantage.
【図１】本発明に係る血液透析装置の脱血不良検出シス
テムの一実施例を示す系統図である。FIG. 1 is a system diagram showing an embodiment of a blood removal failure detection system for a hemodialysis apparatus according to the present invention.
【図２】図１に示す脱血不良検出システムに使用される
監視装置の構成を示す系統図である。FIG. 2 is a system diagram showing a configuration of a monitoring device used in the blood removal defect detection system shown in FIG.
【図３】従来の血液透析装置の脱血不良検出システムを
示す系統図である。FIG. 3 is a system diagram showing a blood removal failure detection system of a conventional hemodialysis apparatus.
１０ 採血側針 １２ 返血側針 １４ 体外血液循環回路（血液チューブ） １６ 血液ポンプ １８ 血液浄化器 ２４ 動脈側血液チャンバ ２６ 静脈側血液
チャンバ ２８ 動脈側トランスジューサ ３０ 静脈側トラ
ンスジューサ ４０ 監視装置 ４２，４４ 増幅
回路 ４６ アナログスイッチ ４８ Ａ／Ｄ変換
器 ５０ マイコン ５２ 監視表示部 ５４ カウンタ10 Blood collection side needle 12 Blood return side needle 14 Extracorporeal blood circulation circuit (blood tube) 16 Blood pump 18 Blood purifier 24 Arterial blood chamber 26 Vein blood chamber 28 Arterial transducer 30 Vein transducer 40 Monitoring device 42, 44 Amplification Circuit 46 Analog switch 48 A / D converter 50 Microcomputer 52 Monitoring display section 54 Counter
Claims (3)
液浄化器に、その流入側動脈圧および流出側静脈圧を検
出する圧力検出手段を備えた血液透析装置において、前
記圧力検出手段に、前記流入側動脈圧および流出側静脈
圧を比較演算することにより前記血液浄化器内の血液流
量を計測監視する監視装置を設けることを特徴とする血
液透析装置の脱血不良検出システム。1. A hemodialysis apparatus comprising a blood purifier that circulates blood via a blood pump, and pressure detection means for detecting an inflow side arterial pressure and an outflow side venous pressure of the blood purification apparatus. A blood removal failure detection system for a hemodialysis device, comprising a monitoring device for measuring and monitoring the blood flow rate in the blood purifier by comparing and calculating the inflow side arterial pressure and the outflow side venous pressure.
静脈圧の比較演算値に関して低圧および高圧の両基準値
を有し、比較演算値が低圧基準値に達すると脱血不良信
号を発生すると共に高圧基準値に達すると血液流路クロ
ッティング信号を発生するよう構成してなる請求項１記
載の血液透析装置の脱血不良検出システム。2. The monitoring device has both low pressure and high pressure reference values with respect to the comparison calculation values of the inflow side arterial pressure and the outflow side venous pressure, and when the comparison calculation values reach the low pressure reference value, a poor blood removal signal is generated. The blood removal failure detection system for a hemodialysis device according to claim 1, wherein the blood flow path clotting signal is generated when the high pressure reference value is reached.
をフィードバックする回路を含んでなる請求項１記載の
血液透析装置の脱血不良検出システム。3. The blood removal failure detection system for a hemodialysis machine according to claim 1, wherein the monitoring device further includes a circuit for feeding back the rotation speed of the blood pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22120092A JP3199855B2 (en) | 1992-08-20 | 1992-08-20 | Failure detection system for hemodialysis machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22120092A JP3199855B2 (en) | 1992-08-20 | 1992-08-20 | Failure detection system for hemodialysis machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0663126A true JPH0663126A (en) | 1994-03-08 |
| JP3199855B2 JP3199855B2 (en) | 2001-08-20 |
Family
ID=16763044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22120092A Expired - Fee Related JP3199855B2 (en) | 1992-08-20 | 1992-08-20 | Failure detection system for hemodialysis machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3199855B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006081852A (en) * | 2004-09-17 | 2006-03-30 | Nipro Corp | Blood purifying apparatus |
| JP2006304836A (en) * | 2005-04-26 | 2006-11-09 | Toray Medical Co Ltd | System for measuring blood removal pressure, and method |
-
1992
- 1992-08-20 JP JP22120092A patent/JP3199855B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006081852A (en) * | 2004-09-17 | 2006-03-30 | Nipro Corp | Blood purifying apparatus |
| JP2006304836A (en) * | 2005-04-26 | 2006-11-09 | Toray Medical Co Ltd | System for measuring blood removal pressure, and method |
| JP4589798B2 (en) * | 2005-04-26 | 2010-12-01 | 東レ・メディカル株式会社 | Blood pressure reduction measurement system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3199855B2 (en) | 2001-08-20 |
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